I donwload Steel Fury - Kharkov 1942 demo,play it and love it a lot so I bought this game from gamergate and install it,but when I click game icon it nothing happen!

Im really feel like being Rip off,I don't mind pay $20 for old game but seriously.I can play DEMO perfect but the Real Copy that I paid my money I can't! this really piss me off. it like im lure buy DEMO and waste money for nothing.

anyway make this game start? I don't think policy of gamergate will refund me.